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# Objective It would be good to have benchmarks handy for function reflection as it continues to be worked on. ## Solution Add some basic benchmarks for function reflection. ## Testing To test locally, run the following in the `benches` directory: ``` cargo bench --bench reflect_function ``` ## Results Here are a couple of the results (M1 Max MacBook Pro): <img width="936" alt="Results of benching calling functions vs closures via reflection. Closures average about 40ns, while functions average about 55ns" src="https://github.com/user-attachments/assets/b9a6c585-5fbe-43db-9a7b-f57dbd3815e3"> <img width="936" alt="Results of benching converting functions vs closures into their dynamic representations. Closures average about 34ns, while functions average about 37ns" src="https://github.com/user-attachments/assets/4614560a-7192-4c1e-9ade-7bc5a4ca68e3"> Currently, it seems `DynamicClosure` is just a bit more performant. This is likely due to the fact that `DynamicFunction` stores its function object in an `Arc` instead of a `Box` so that it can be `Send + Sync` (and also `Clone`). We'll likely need to do the same for `DynamicClosure` so I suspect these results to change in the near future. |
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| Cargo.toml | ||
| README.md | ||
Bevy Benchmarks
This is a crate with a collection of benchmarks for Bevy, separate from the rest of the Bevy crates.
Running the benchmarks
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Setup everything you need for Bevy with the setup guide.
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Move into the
benchesdirectory (where this README is located).bevy $ cd benches -
Run the benchmarks with cargo (This will take a while)
bevy/benches $ cargo benchIf you'd like to only compile the benchmarks (without running them), you can do that like this:
bevy/benches $ cargo bench --no-run
Criterion
Bevy's benchmarks use Criterion. If you want to learn more about using Criterion for comparing performance against a baseline or generating detailed reports, you can read the Criterion.rs documentation.